When opening the zip file, the assets folder and pack.mcmeta file must be directly inside, not nested inside another folder.
Launch your preferred version of the game in your browser. Navigate to Settings: Go to Options > Resource Packs . eaglercraft 188 resource packs work
After testing hundreds of files, these three packs are guaranteed to make your without crashes. When opening the zip file, the assets folder and pack
: Only use packs designed for Minecraft 1.8 . Newer packs (1.12+) use different file structures and won't load. When opening the zip file